I just check your masterbase, your OGW new colorless mana symbol display as "%C". But in MWS, untap mana symbol is set as %C in this patch.

If you want to set %C as colorless mana, you must change all cards of the text using untap mana symbol "%C" to another word. (For example, %&, or something.)

Once you change it, we must change and creat new mwTheme to display %C as colorless symbol and change different word to display untap mana symbol.

Nowadays, me and another worker makes patch as %& to display new colorless mana on another site (MTGsalvation), but i know other man makes same patch %C to display new colorless in this (slightly magic) site.(but untap symbol problem still remain i think.)

I don't know which one adopt but Goblin's MWS patch become official, so can you change and decide %C to another word to display untap mana symbol and colorless mana and modify them?

Hey Goblin, i would like t oask you.. im getting this error whith a lot of cards from the EMN masterbase.. some JPEG error, and it doesnt seem to be something to do with the PIC themselves.. also if i try to change the record for the cards like Hanweir Garrisson im getting the same error..